740406 has 8 divisors (see below), whose sum is σ = 1480824. Its totient is φ = 246800.

The previous prime is 740387. The next prime is 740423. The reversal of 740406 is 604047.

740406 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

740406 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61695 + ... + 61706.

It is an arithmetic number, because the mean of its divisors is an integer number (185103).

2⁷⁴⁰⁴⁰⁶ is an apocalyptic number.

740406 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

740406 is a wasteful number, since it uses less digits than its factorization.

740406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123406.

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 740406 is about 860.4684770519. The cubic root of 740406 is about 90.4669557738.

The spelling of 740406 in words is "seven hundred forty thousand, four hundred six".